chore: move index.js into src (#6007)

* chore: move `index.js` into `src`

This is the first part of a series of pull requests that will slowly
make it possible to initialise Puppeteer for either a Node environment
or a web one. By creating the `initialisePuppeteer` function we can
inject dependencies in for the given version of Puppeteer (e.g. inject a
different debug library for Node vs the web).

This PR moves the initialisation into `src` and calls into it from the
root `index.js`.
This commit is contained in:
Jack Franklin 2020-06-12 13:53:02 +01:00 committed by GitHub
parent 8a099a0c2c
commit 5c91dfbf3f
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2 changed files with 77 additions and 34 deletions

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@ -14,40 +14,11 @@
* limitations under the License. * limitations under the License.
*/ */
const { helper } = require('./lib/helper'); const { initializePuppeteer } = require('./lib/index');
const api = require('./lib/api');
const { Page } = require('./lib/Page');
for (const className in api) {
if (typeof api[className] === 'function')
helper.installAsyncStackHooks(api[className]);
}
// Expose alias for deprecated method. const puppeteer = initializePuppeteer({
Page.prototype.emulateMedia = Page.prototype.emulateMediaType; packageJson: require('./package.json'),
rootDirectory: __dirname,
const { Puppeteer } = require('./lib/Puppeteer'); });
const packageJson = require('./package.json');
let preferredRevision = packageJson.puppeteer.chromium_revision;
const isPuppeteerCore = packageJson.name === 'puppeteer-core';
// puppeteer-core ignores environment variables
const product = isPuppeteerCore
? undefined
: process.env.PUPPETEER_PRODUCT ||
process.env.npm_config_puppeteer_product ||
process.env.npm_package_config_puppeteer_product;
if (!isPuppeteerCore && product === 'firefox')
preferredRevision = packageJson.puppeteer.firefox_revision;
const puppeteer = new Puppeteer(
__dirname,
preferredRevision,
isPuppeteerCore,
product
);
// The introspection in `Helper.installAsyncStackHooks` references `Puppeteer._launcher`
// before the Puppeteer ctor is called, such that an invalid Launcher is selected at import,
// so we reset it.
puppeteer._lazyLauncher = undefined;
module.exports = puppeteer; module.exports = puppeteer;

72
src/index.ts Normal file
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@ -0,0 +1,72 @@
/**
* Copyright 2020 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// api.ts has to use module.exports as it's also consumed by DocLint which runs
// on Node.
// eslint-disable-next-line @typescript-eslint/no-var-requires
const api = require('./api');
import { helper } from './helper';
import { Page } from './Page';
import { Puppeteer } from './Puppeteer';
interface InitOptions {
packageJson: {
puppeteer: {
chromium_revision: string;
firefox_revision: string;
};
name: string;
};
rootDirectory: string;
}
export const initializePuppeteer = (options: InitOptions): Puppeteer => {
const { packageJson, rootDirectory } = options;
for (const className in api) {
if (typeof api[className] === 'function')
helper.installAsyncStackHooks(api[className]);
}
// Expose alias for deprecated method.
// @ts-expect-error emulateMedia does not exist error
Page.prototype.emulateMedia = Page.prototype.emulateMediaType;
let preferredRevision = packageJson.puppeteer.chromium_revision;
const isPuppeteerCore = packageJson.name === 'puppeteer-core';
// puppeteer-core ignores environment variables
const product = isPuppeteerCore
? undefined
: process.env.PUPPETEER_PRODUCT ||
process.env.npm_config_puppeteer_product ||
process.env.npm_package_config_puppeteer_product;
if (!isPuppeteerCore && product === 'firefox')
preferredRevision = packageJson.puppeteer.firefox_revision;
const puppeteer = new Puppeteer(
rootDirectory,
preferredRevision,
isPuppeteerCore,
product
);
// The introspection in `Helper.installAsyncStackHooks` references `Puppeteer._launcher`
// before the Puppeteer ctor is called, such that an invalid Launcher is selected at import,
// so we reset it.
puppeteer._lazyLauncher = undefined;
return puppeteer;
};